package task13;

/**
 * Create by IntelliJ IDEA
 *
 * @author: jsonor
 * @date-Time: 2018/4/13 8:27
 * @description: 图形类，抽象类:3个抽象方法
 */
public abstract class Shape {
  public abstract double area();
  public abstract String getName();
  /*public abstract void output();*/

}
